GB771397A - Concrete block forming machine - Google Patents
Concrete block forming machineInfo
- Publication number
- GB771397A GB771397A GB8367/55A GB836755A GB771397A GB 771397 A GB771397 A GB 771397A GB 8367/55 A GB8367/55 A GB 8367/55A GB 836755 A GB836755 A GB 836755A GB 771397 A GB771397 A GB 771397A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- pallet
- springs
- rods
- ram
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/022—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form combined with vibrating or jolting
Abstract
771,397. Moulding concrete blocks. - COLUMBIA MACHINE WORKS, Inc. March 22, 1955 [April 5, 1954], No. 8367/55. Class 87(2). A concrete block forming machine comprises a mould and pallet on a resilient support, means to impart vertical vibration to the mould an impact head vertically movable to and from the mould and a fluid motor operatively joined to the impact head through flexible and resilient members, whereby the fluid motor initiates movement of the impact head towards the mould and when the motor approaches the limit of its stroke it throws the head towards the mould due to the resiliency of the members. The mould 22 is suspended from the free ends of leaf springs 23 (seen endwise in Fig. 1) through lugs 33 which fit between two leaves. Through these lugs, and through spacers between the remaining leaves, screws 31 pass with their lower ends pivotally joined to the forked upper ends of rods 35. The lower ends of the rods 35 have eccentric sheaves 35b which surround eccentrics (not shown) on a drive shaft 38, and the rods 35 therefore act as connecting rods and vibrate the mould in a movement which is substantially vertical under the constraint of the ends of the leaf springs. A ram 44 is fixed to a beam 44a and is brought down on top of the concrete in the mould by the action of hydraulic cylinders 45 with their piston rods 48 connected to the ends of the beam. In order that the ram may strike the concrete with a sharp blow the connection between the rods 48 and the beam 44a is through springs 51, fitting under a head 49, housed in pockets 50. The bottom of the mould 22 is open and the concrete (which is fed from a hopper (not shown)) is supported by a pallet 20. The pallet is supported from a pallet beam 15 from which a platform 16 projects, springs 17 between the pallet and the platform allowing for the vibration movement of the mould. Excessive rocking is prevented by adjustment screws 19. To provide for stripping the moulded block the pallet beam 15 is secured to sleeves 4 which slide on rods between fixed lugs 2, 3 and are joined by a beam 5 operated by a piston rod 6. The piston rod enters a doubleacting hydraulic stripper cylinder 7 which is secured to a bracket 8. Removable bumpers 12 backed by springs 14 are supported from flanges 9 on the bracket. The pallet beam 15 carries stops 53, with adjusting screws 54, aligned with limit pins 52 depending from the beam 44a. With the mould filled and the pallet raised to seal its bottom, hydraulic fluid is forced into the top of each cylinder 45. The initial movement of the piston rod 48 compresses its spring 51 without the beam 44a and ram 44 moving, owing to their inertia. The beam and ram later move downwards, and before they reach their bottom position the vibration of the mould is started. The motion is timed so that the spring 51 does not expand to its original position during the downward movement, and the ram strikes the material in the mould with a heavy blow and compacts it intensely, the shock to which the framework would otherwise be subjected being largely absorbed by the springs. With the ram pressing on the concrete the springs 51 expand to exert slow compression of the material following the impact, the vibration continuing, this stage ending when the limit pins 52 meet the stops 53, at which position the springs 51 are still slightly compressed. The moulded block is removed on the pallet.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US771397XA | 1954-04-05 | 1954-04-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB771397A true GB771397A (en) | 1957-04-03 |
Family
ID=22136300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8367/55A Expired GB771397A (en) | 1954-04-05 | 1955-03-22 | Concrete block forming machine |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB771397A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0214684A1 (en) * | 1985-08-23 | 1987-03-18 | Gebroeders Rook Beheer B.V. | Method for manufacturing stones in a press, and press for manufacturing said stones |
CN102886810A (en) * | 2011-07-19 | 2013-01-23 | 上海奥伯应用技术工程有限公司 | Processing device of tie composite insulating brick or building block and processing method of processing device |
WO2018152958A1 (en) * | 2017-02-24 | 2018-08-30 | 南通市恒达机械制造有限公司 | Batch-oriented efficient brick forming machine |
CN112341206A (en) * | 2020-11-05 | 2021-02-09 | 衡阳凯新特种材料科技有限公司 | Forming method of rare earth praseodymium-holmium-stabilized silicon nitride ceramic |
CN113073856A (en) * | 2021-04-08 | 2021-07-06 | 中建八局第二建设有限公司 | Bearing mechanism is used in construction cantilever beam installation |
CN115093194A (en) * | 2022-08-24 | 2022-09-23 | 江苏夸迪安防集团有限公司 | Antibacterial floating bead fireproof heat-insulation plate and preparation method and application thereof |
CN117301255A (en) * | 2023-11-30 | 2023-12-29 | 山西省公路局晋中分局试验室 | Attached vibrator for box girder prefabricated formwork |
-
1955
- 1955-03-22 GB GB8367/55A patent/GB771397A/en not_active Expired
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0214684A1 (en) * | 1985-08-23 | 1987-03-18 | Gebroeders Rook Beheer B.V. | Method for manufacturing stones in a press, and press for manufacturing said stones |
CN102886810A (en) * | 2011-07-19 | 2013-01-23 | 上海奥伯应用技术工程有限公司 | Processing device of tie composite insulating brick or building block and processing method of processing device |
CN102886810B (en) * | 2011-07-19 | 2016-05-25 | 上海奥伯应用技术工程有限公司 | Processing unit (plant) and the processing method thereof of a kind of drawknot type composite insulating brick or building block |
WO2018152958A1 (en) * | 2017-02-24 | 2018-08-30 | 南通市恒达机械制造有限公司 | Batch-oriented efficient brick forming machine |
CN112341206A (en) * | 2020-11-05 | 2021-02-09 | 衡阳凯新特种材料科技有限公司 | Forming method of rare earth praseodymium-holmium-stabilized silicon nitride ceramic |
CN113073856A (en) * | 2021-04-08 | 2021-07-06 | 中建八局第二建设有限公司 | Bearing mechanism is used in construction cantilever beam installation |
CN113073856B (en) * | 2021-04-08 | 2022-05-31 | 中建八局第二建设有限公司 | Bearing mechanism is used in construction cantilever beam installation |
CN115093194A (en) * | 2022-08-24 | 2022-09-23 | 江苏夸迪安防集团有限公司 | Antibacterial floating bead fireproof heat-insulation plate and preparation method and application thereof |
CN115093194B (en) * | 2022-08-24 | 2022-11-08 | 江苏夸迪安防集团有限公司 | Antibacterial floating bead fireproof heat-insulation plate and preparation method and application thereof |
CN117301255A (en) * | 2023-11-30 | 2023-12-29 | 山西省公路局晋中分局试验室 | Attached vibrator for box girder prefabricated formwork |
CN117301255B (en) * | 2023-11-30 | 2024-02-23 | 山西省公路局晋中分局试验室 | Attached vibrator for box girder prefabricated formwork |
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